Automatic signaling device.



c. L. BOPP.

AUTOMATIC SIGNALING DEVICE.

' APPLICATION FILED JUNE 30,1911- Patented Feb. 29, 1916.

SHEET 1'.

4 SHEETS N m W C. L. BOPP.

AUTOMATIC SIGNALING DEVICE.

APPLICATION FILED JUNE 30,1911.

Patented Feb.29,1916.

4 SHEETS$HEET 2- C. 'L'. BOPP.

AUTOMATIC SIGNALING DEVICE.

APPLICATION FILED IUNE 30,19II.

Patented Feb. 29, 1916.

4 SHEETSSHEET 4.

l witnesses Eldon 1211:,

THE COLUMBIA PLANOGRAPII c0.. \VASHINGTDN. D. c.

p'nrrnn sra rns ra'rnur or ies.

CLINTON L'BOPP, OF HAWKEYE, IOVTA.

AUTOMATIC SIGNALING DEVICE.

able others skilled inthe art to which it appertains to make and use the same.

This invention relates to improvements in signaling systems, and particularly to relay devices associated with indicating devices designed to automatically indicate the position of trains over a particular track.

The object in view is the arrangement in an automatic railway signaling system, of

means for indicating the position of a train as the same'passes from station to station along the system, and for insuring the successful operation of the'indicating devices when two or more trains are running close together.

1 further object of the invention is the provision of an accumulating and relaying apparatus formed with a plurality of switching devices designed to accumulate signals when the indicating devices along the track to which the apparatus is connected are prevented from indicating by the action of-a previous train until the means for preventing the indication. has been removed,- said accumulated signals being adapted to be unloaded or released at the proper time for causing the proper operation of the indicating devices affected.

A still further object of the invention is the arrangementin a train signaling system, of wiringalong the track having connected therewith an indicating device at each station and an accumulating and relaying apparatus at' each station, and a switch designed to be operated trains passing over the track, the relays being arranged to cause the proper operation of the indicating means for indicating the position of trains along the system.

Vith these and other objects in view the invention comprises certain novel constructions. combinations, and arrangement of parts as will be hereinafter more fully de-' scribed and claimed. I I

In the accompanying drawings: Figure 1 is a dia rammatic detail view of station 1, the clrcults 1n full lines representlng the.

Patented Feb. 29, 1916.

Application filed June 30, 1911. Serial No. 636,170.

condition when a train is just at station 1, while the dotted lines show the condition of the station just after the train. has passed. F 1g. 2 is also a diagrammatic detail view of station 1, the condition of circuits shown being that eristing when the first train has passed station 1 and a second train is at the switch of station 1. Fig. 3 is a diagrammatic detailed view of station 2, the circuits 1n the apparatus shown being in such condition as obtains when the first train has passed station 3, station 2 is delivering accumulated signal to station 3 and there is a train at the switch of station 1. Fig. 4 is a diagrammatic detailed view of the circuits at station 3 showing the same in such condition as will be caused by the passing of the first train beyond station 3, this figure showing the circuits necessary for delivering the accumulated signals from apparatus B at station 2.

In constructing the signaling system which is the subject matter of this invention, two line wires are used. If it is desired to use the system for two tracks, then a duplication of the system here described will be necessary, which, of course, would necessitate four line wires. Each of the stations ranged along the track has a switch operated by the train, an indicator and an accumulating and relaying apparatus which are connected to two line wires, as will be more fully described hereinafter. After all of these devices have-been connected properly with the line wires a train starting from the first station over the system will operate the indicator or indicating device at the first station, and substantially at the same time will operate all the remaining stations ahead of the first station over the entire system for indicating at all the stations that a'train has left the first station. As soon as the. train has arrived at and assed over the switch at the second station allof the indicating mechanisms in front of the train will be operated again for showing the new position of the train, the inclicating mechanism at the second'station being locked against movement by a second train, and the indicating mechanism at the first station being unlocked ready for operation by a second train. The second station which is locked will be held in a locked position until the first train has passed over the switch at station 3, whereupon the indicating mechanism at station 3 will be locked 4 at station 1 is provided with the name of and the indicating mechanism at station 2 W111 be unlocked. This action is continued for the full length of the'sys'tem so that the stations ahead of the train will know the position at all times of the first train, and the statlons 1n rear of the first trainwill be free for operation by a succeeding train,

except the last station passed.

' In order'that theinvention maybe more clearlyunderstood an embodiment 5 of the same is shown in the accompanying draw-. lngs, 1n which A'indicates an indicator and B an accumulating and relaying apparatus.

There is, of course, an indicator and apparatus B at each station, the connections at any one station being shown bv'a'ny one of the figures. In orderto bring in more clearly the functions of the various devices and the results attained: the same are described in connection with the passage of Y formed or constructed as disclosed-in my Patent No. 1,114,429.,(issued October 20, 1914, but if desired some other suitable structure may be providedI- However, each of the indicators Av must be provided with traveling tape'4, and means for operating the same,including afpivotally ,mounted member 5 which may be attracted by magnet 6 when energized. In tracing the circuit of magnet 6 current will travel from battery '7, through wire 8, binding post 2,

9 wire lO, armature 11, contact 12, wire 13,

the winding ofmagnet 6,'wire 14, binding post 1*, and from thence throughwire 16, battery 7. Current, ofcourse, only flows in this circuit when armature ll has been attracted by magnet 17, as hereinafter fully described, which, of course, closes thecircuit between armature 11 and contact 12. Tape station 1;, which name is merely duplicated 3 any desired number of times thereon acnames ofstations 1 and 2 alternately, so"

cording to the length of the tape. Each time that a train passes over the switch lat'station 1, tape 4 will be moved a predetermined-distance. At each movement of tape 4 the name of station 1 will'be dis-- closed. Indicator A at station 2 is constructed similar to indicator A" at station 1,

but'the tape 4 thereof is provided with the that when the tape is first operated the name of station 1 will-appear, and when;

the tapeis operated a second time the name of station 2 will appear. Upon thethird operation of tape 4 at station 2 the name of station-'1 will appear, etc. These names are repeated ovenand over as often as the switches 1 at'stations l and 2' are operated. The same arrangement is provided in regard to'the 'in'dicators'at stations 3 and 4, except thatat station 8 the namesof stations 1, 2, and 3 are provided .on the tape, and at station the namesof stations l, 2, 3 and 4 are provided. vBy thissarra'ngement when switch 1 at'station l is closed the name of station '1 will'appear on the tapes of all four stations, and if'there should be more stations than four, of course, the name of station 1 will appear on the tapes of all the stations. When the first train has closed 7 switch 1 at station 2- all of the indicators v ated for disclosingthe name of station 2. As the train advances and passes the respective stations the indicatorsat the sta tions ahead will be operated for continu-; ously showing the position of the train, but the stations in the rear are not operated.

Assuming the first condition, namely, that the first train is at station 1,-and all of the I indicators A are in a normalposition with the tapestherein indicating the respective stations atwhichthe respective indicators are positioned so that the neXt movement will indicate station 1, it is designed that the respective indicators A at all thefstations will be operated-substantially at the same'ftimewhen thetrain passes over or closes switch 1* at stationl. switch 1 at station 1 is closed in this man- A, except the oneiat station 1, will be oper- When the.

ner current'willfiow through'the respective indicators, and through part of the respective relays. For thepurposeof'tracing the circuit it will be assumed that the current will start at switch 1','station 1, 'from'whioh it 'will pass through wire 18 ofrapparatus B,

station 1, binding post 14", wire 19, the winding of magnet 20, wire 21, wire 22, binding post 9 wire 23, battery 24, wire 25, binding post 8*, wire 26, binding post 2 ,wire 27-, binding post 5*, of indicator A,

'from which the current passes through the indicator A, station '1'. Tracing the circuit from binding 'post- 5*, of indicator A station 1, the current will pass through wire 28,.the winding of magnet 17, wire29 wire 30, binding post 3*, and from thencethrough wire 31 to the ground, and from the ground back-totrack switch 1- of apparatus, B, thus completing the circuit; The flow of current in thislcircuit will cause'magnet 20 of the relay'at station 1 to become energized, and

alsothe'm'agnet 17 of theindicatorlA, at station 1; The energizing of magnet 17 will cause a movement of armatures [l1 and,

33, which 'will "cl'ose contacts at points 12 e and 34, whereby current will pass from' 7 battery 7 to magnet 6 for moving tape (station 1) already described. The circuit for relaying the indications t0 the stations ahead is as follows: Current flows from the ground through wire 31, binding post 3, wire 30, armature 33, contact 34, wire 73, binding post 4, wire 74, binding post 1 of indicator B stationl, wire 75,-,wire 7 6, armature 71, contact 79, wire 77, wire 78,

contact 79 (which is normally closed) wire 80,

wire 81, binding post 15*, line wire 3, binding post 6 of station 2, wire 83, wire 22, binding post 9, wire 23, battery 24, wire 25, binding post 8 ,,wire 26, binding post 2, wire 27, binding post 5, wire 28, magnet 17, wire 29, wire 30, binding post 3, wire 31, and return to the ground at station 2, thus completing the circuit. The energizing of magnet 17, station 2, produces the same result that the energizing of magnet 17 at station 1 produces. In this manner all the indicator controlling magnets of the succeeding stations are energized so that as train 1 operates the switch 1 at station 1 all the indicator magnets are energized. After the current has passed through the variousdevices at station 2 in a similar manner to the way that it passed through the same devices at station 1, the current will then flow through the main line wire to station 3 and act in a similar manner, and from thence through the main line wire to station 4, and act on the various devices at that station. It will be understood, of course, that only the indicators'will be operated, the relaying apparatus permitting the passage of current from one station to another without operation. At the same time that magnet 17, station 1, was ener- '2 gized, armature 11 of the indicator'A, station- 1 was attracted, WVhen thearmature 11 was attracted current was caused to flow from battery 7 (station 1) through wire 8, binding post 2*, wire 10, armature 11, contact 12, wire 13, the Winding of magnet 6,

. wire 14, binding post 1, wire 16, and from thence back tobattery 7. Current flowing in this circuit will cause the magnet 6' to become energized, which in turn will cause tape 4 to rotate one step forward.

When magnet 20 is energized the same will move armature 35, which will cause current to flow through a circuit including magnet 36. Starting with armature 35 cur-' moved against the action of spring 49 the same will partially rotate a ratchet wheel 50 as the ratchet wheel is connected with the lever by a link 51. A pawl 52 is pivotally mounted ona notched or serrated member 53, and is designed to engage the teeth of ratchet wheel 50 for preventing any reverse movement thereof independent of the pawl. If desired a friction spring 54 could be provided for insuring engagement of the ratchet wheel by the pawl. On the reverse side of member 53 to the side on which ratchet wheel 50 is'positioned is arranged a similar ratchet wheel provided with a pawl for permitting the same to r0- tate only in one direction. The ratchet wheel on the opposite side of notched member 53 is rigidly connected with member 53 and permits the member 53 to rotate only in the opposite direction to the way that the ratchet wheel 50 rotates when operated by magnet 36. Member 53 and ratchet wheel 50 are loosely mounted upon a supporting shaft, and are not connected in any way eX- cept by pawl 52 which will cause the rotation of member 53 when spring 49 moves lever 48 in a reverse movement. From this it will be observed that when magnet 36 is energized ratchet wheel 50 will be moved 1 in one direction, and when the magnet 36 is deenergized ratchet wheel 50 and member 53' will be moved in the opposite direction under the action of spring 49. The condition of the circuits up to the releasing of armature 47 by magnet 36 is shown in full lines in Fig. 1 and it is assumed that the train is still holding'downswitch 1 at station 1.

The second assumption is that train 1 has passed station 1 and is between stations 1 and 2 and switch'l is raised, these conditions being shown-in dotted lines Fig. 1. Adjacent to the member 53 is a switch contact 55 adapted tocotiperate with a conductive spring 55, carrying at its ends cam roller 56, which as the cam roller 56 rolls or passes over the rounded projections of member 53, closes circuit to contact 55 causing current to flow through wire 57, binding post '11 wire 58, battery 59, wire 60, binding post 12", wire 61, the winding of magnet 62, wire 63, binding post 16, wire 64, to line wire 2 along line wire 2 to binding post 5 of apparatus B,'station 2 (see Fig. 2), wire 65, station 2, armature 71", contact 66, wire 67, wire 68, binding post 13, and from thence to the ground, and

through the ground back to station 1 to binding post 13", apparatus B at station 1,-

wire 68, wire 69, wire 70, to contact 55, thus completing the circuit. Current flowing in this circuit will energize magnet 62,. and cause the armatures 71, 71 and 71 to be attracted (station 1) shown in dotted lines Fig. 1. When these armatures are attracted two contacts will be broken and two con-' tacts made, but when contacts 72 are made current wlll flow from the ground to blnding post 13", through wire 68, wire 67, con

tacts 72, armature 71", wire 57, binding post 11", wire 58, battery 59, wire 60, binding post 12 wire 61, the Winding of magnet 62, wire 63, binding post 16*, wire 64,

to line wire 2', and from thence to apparatus B, s'tation2 through binding post 5 wire '65, armature 71, contact-66, (as shown in Fig. 2), wire 67, wire 68, binding post 13 to ground, thus completing the circuit, of magnet 62 at station 1. This is a stick relay circuit holding magnet62 energized and depending for maintenance upon the deenergization of magnet 62 at station '2. It will be noted that the armatures 71, 71 and 71 havenot been attracted in the relaying apparatus at station 2, though the same are attracted at apparatus 62,station 1, so that current may flow in the circuit just doscribed. Current flowing in this circuit will cause the armatures 71, 71' and 71 station *1, to stay in their attracted position until the train arrives at station 2, and operates track switch 1, at station 2, which causes the armatures 71, 71 and 71" at station 2 to be attracted, and thus open the circuit at contact 66, station 2. The action of the magnets and their armatures 71, 71 and 71 may be termed locking and unlocking, and is used throughout the entire system as the train passes therethrough.

The third condition arises when the sec- 0nd train enters thejsystem and closes switch 1 at the first station, thefirst train 7 being between the first and second stations.

Fig 2, where it is assumed that a train is at the switch at station 1, and relay 62 1361161 gize'd for. effecting the loclnng operation Assuming that the first train is between stations '1 and 2 and a second train is passing switch 1 at station l-the second train will operate theflindicator at station 1 but will not operate indicator at station 2 as station 1 is locked. if it had been assumed that the train was bet-ween stations 3 and 4 then the presence of a train at station 1 would have resulted in operating indicators at stations 1, 2 and 3,"butnot 4 as station 3 would be locked, In this case, the system Wouldhave been divided intot'wo blocks,

the dividing point being station 4. Under the present assumption, however, station 2 is the dividingpoint, one'block being be hind and one ahead of station 2. The con? ditions about to be described are shown in above described. 7 i Upon the passlng of asecond train over the'track switch 1 at station 1 currentwill, 'pass from the ground at station 1, through track switch 1, wire 18, binding post .14",

wire 19, magnet 20, wire 21, wire 22, binding post 9, wire 23, battery 24, wire25, binding station 1.

. cuit.

niagnet 91 by retractile spring 95.

post 8 wire 26,-binding post 2 wire 27, binding post 5 ofindicator A, station 1 wire 28, 'magnet 17, wire 29, wire 30,-binding post3 wire 81 to ground, and through groundback to'switch 1, station 1." Current flowing in this circuit' will cause magnet '17 at indicator A station 1 to be energized, and thus attract armatures 11 and 33 for causing the contact thereof with contacts 12 and 34 which will permit current to flow'f'rom the ground through wire 31, binding post 3 of the indicator A, station 1, wire 30,

armature 33, contact 34, wire '73, binding post 4*, wire 74,.bindingpost 1 of appa ratus B, station 1, wire 5, wire 76, 'arma-' ture 71, w1re'83, magnet 84-1,,W1F6 85, mm

41, binding post 3*, wire42, battery 43,

will flow fro1nbatteryf43 through wire '44,

binding post 4 wire 88, wire 89, armature 86, contact 87, wlre 90, magnet 91, w re 92,

wire 93, wire 41, binding post 3 wire 42, 7

back to battery 43, thus completing the cir- When current "passes in thiscircuit magnet 91 is energized, and consequently will attractpivotally mounted armature 94, which is normally held out of contact with pivotal movement of lever'94 will-pull 'longi- The tudinally upon the hookshap ed member or pawl 96, which engages a ratchetwheel 97,

' and moves the same one step forward, and

at the same time permits'thepawl or hook 98 'to' engage thenext succeeding. tooth.

"Ratchet wheel 97 isrigidly mounted upon a shaft which is rigidly secured to" drum 99, which drum 1S alsorlgidly secured to ratchet wheel 100,,so that whenever pawl 96 rotates f ratchet wheel 97 one step forward drum' 99 V will also be rotated one step forward. This movement will causethe tape orba'nd 101 'tobe wound fora certain distance on drum 99, which, will consequently lift the stop or clamp 102, as well as theweight 103. 9 The lifting of the stop 102 permits the retractile spring 104 to open the contact 79" bymoving levers 105 and106on their pivotal support 107. The levers 105ifand 106 are rigidly secured together so as to be moved in unison. and in addition lever 106 has rigidly secured thereto contact members 109 and 108-, By 1 'ouenin thecontacts 7 9 current will be prel a:

vented from flowing over wires 78 and 80.

108and 109 will be closed. I currentover wire 74, at statlon 1, causes- Also'by the operation of lever 106 contacts." The passage of 1 these operations because the armatures 71, '71 and '71 at station 1 are locked, the locking having taken place when-the first 1 train passed the station. These operations take place in order that when the armatures 71 at stationl are unlocked a further movement of certain parts, including the rotating notch member 110, will result for permitting current to operatethe indicator at -2 is delivering to station 3 and a train is at station 1. The circuits accomplishing the sending of stored signals "will first be described. As this operation begins the conditions shown in Fig. 2 will be changed to those shown in Fig. 3. It is understood that the first train has passed station 3 and has therefore unlocked the relay 62 at station 2. Immediately upon the unlockingof armatures 71, 71 and 71 62 at station'2current will flow from local battery43, throughwire 44, bindingpost 4 wire45, binding post 13, wire 68, wire 67, contact 66,wire 157, wire 111 wire 128 contact 108 which have been closed by the raising of stop 102, wire 112, magnet .113, wire 114, wire 115, magnet 116, wire 117, wire 40 wire 93 wire 41, binding post 3 wire 42 back to battery 43, thuscompleting thecircuit; 7 Current flowing in this circuit will energize magnets 113 and 116,

which will in turn attract armatures or pawls 96 and 98, for causing the same to becomedisengaged'fromratchet wheel 97,

whereby drum 99 will be released. Upon the releasing of drum 99 weight 103w1ll move down under the action of gravity and stop 102 will move lever or arm105 down 118 which engages ratchet wheel 100.; Ratchet wheels 97 and 100, and the drum 99 and notched member 110, together with associated devices form an automatic accumulating mechanism whlch is released when pawls 96 and 98 are'moved by magnets 113 and 116. Ratchet wheel 97, drum 99, and ratchet 'wheel 100 are rigidly connected to their supporting shaft, while notched member 110 is loosely mounted upon the supporting action of weight 103. Upon the movement of the notched member 110 the cam wheel or roller 119 is 'moved back and forth for each notch, and upon each back and forth movement closes the circuit controlled by contact 120. Ratchet wheels 97 and 100 are constructed with an equal number of teeth so that the same degree of rotation will be made by both members. When the automatic accumulating mechanism is operating as just described in connection with station 2, current will flow from the ground at station 2, to binding post 13 through wire 68, wire 69, wire 121, contact 120, wire 122, wire 81, binding post 15 ,'wire 82, line wire 3 to the apparatus at station 3 (see Fig. 4), binding'post 6, wire 83,-wire 22, binding post 9 ,wire 23, battery 24, wire 25, binding post S wire 26, binding pos t 2 ,'wire 27 to the indicator at station 3, and through the indicator at station 3 for causing the proper operation thereof, and thus completing the circuit to the ground.

Assuming that the automatic accumulating device at station 2 is performing the last function mentioned, namely, the rotation of the notched member 110, and pawls 96 and 98 are disengaged so that contact is made at 120, it will be evident that if a second train closes any of the track switches 1 in the rear of station 2 the automatic accumlating mechanism will not be affected by the current flowing from the indicator at station 2. This arrangement is provided so that the automatic accumulating mechanism may complete its operation for unloading. The signal circuits from a point behind the second station leads to the indicator-,A, station'2 without including movable contacts. The magnets 113 and 116 remain energized independently of the indicator circuits, these magnets being in a local circuitreceiving current from battery '43.

While the automatic accumulating mechanism is thus unloadinga second automatic accumulating mechanism is loaded when one of the track switches in rear of station 2 is operated. The automatic accumulating mechanism including notched member 110 is not in condition for receiving impulseswhen operating-as the same might conflict with the current turned into the circuit by the second train. When the automatic accumulating mechanism, including the notched member 110 is operating or is unloading, weight 103 is raised and stop 102 is not pressing-against arm or lever 105, so that contacts 109are closedin order that current switched into the circuit by a. second train may pass. The current from station 1 passes through indicator. A, station 2 and thereby energizes the electromagnet 17 which attracts armature 33. In tracing the circuit the current will pass from the ground at station 2, wire 31, binding post 3, wire 30,

armature .33, contact34, wire 73, binding positedlrection and engag a pawl which post 4, wire 74,"binding-post 1 ,wire 75,

Wire 76, armature 71, contact 79, wire 77,

magnet 123, wire 124, contact109, wire 125, wire 92, w1re,93, wire41,b1nd1ngpost 3 w1re'42, battery 43, w re 44, binding post 4 wire 45, binding post 13 to the ground, and

from the ground back to the indicator (station2), thus completing the circuit. By

current flowing'in this circuit, includingthe contact 109 which was made asthe result of a circuit closed thesucceedin train it i y n 7 will beobserved that the magnet 123 will be energized and attract armature 126 and 126 for closing two contacts.

l/Vhen armature126" is attracted current will flow frombattery 43 through wire 42,

' bindin ost 3 :wire 41 wire 93 wire 92,

wire'125, contact 109-, wire 124, magnet'123, wire 127, armature 1 26, wire128,wire 128, wire 111, armature 71, contact 66, wire 67,

. wire 68, binding post 13 wire 45, binding post 4, wire 44, back to battery 43. It will be observed thatwhen the succeeding train passes over track switch 1 a circuit is provided, including magnet 123, which magnet,

ofcourse, is energized, and-will remain energized as long as the train is holding track switch 1 closed As track switch 1 is only held closed momentarily the circuit just'describedwith current from battery 43is provided for maintaining magnet 123 energized after the second train ha passed the track switch, and until the; circuit controlled by contact 109 is broken. the armatures 126 and 126T arecausedto stick or remain in their attracted position until the automatic accumulating devices have finished operating or unloading and the circuits at contacts 108 and. 109 have been broken by means of weight 103. At

the time that magnet 123 is energized and while armatures 126 and 126 are in their attracted position, current will flow from 126, wire 133, wire 67, Wire 68,1bindinjg post i I 13 wire 45, binding post 4 wire 44, back battery 43, over wire 42, binding post 3,

wire 41, wire'93, wire 40, wire 129, wire 39,

wire-130, magnet 131, wire 132, armature when magnet'36 is energized. Upon movement of armature 134 power will beconveyed through link 135 to ratchet: Wheel 136 for movingthe same'one step forward,

and causing pawl 137 to engage the next:

succeeding'notch. Ratchet. wheel-136 is loosely mounted upon its journal, and also the notched rotating member 138 is loosely mounted uponthe same supporting mem-. ber. The notched member 138 is provided with a ratchet wheel similar to. ratchet wheel rotating the same; From this it willbe ob- :servedythat magnet131 causes. a movement -of' ratchet wheel 136 in one direction, but

doesnot affect the position of notched mem 7 e r ber 138, while spring 139 upon the deenerf gization ofrmagnet 131 will, move ratchet so .wheel .136 in a reverse direction, .and'will carry with it notched member .138; Upon movement 0f notchedsmember 138 the :cam

-once for temporarily closing the circuit at ltractile spring 139, for. causing a reverse movement of ratchet wheel 136 and notched member 139. This circu t ncludlngmagnct By this arrangement 136, ezicept that the teeth extend in theopthence conveys power to ratchet wheel 136.

From-ratchet wheel 136 power is conveyed through pawl 137 to notched member-138 for roller 140 will be moved back and forth 1 contact *144. However, the magnet 131 is malntained energized and the'reverse move- 7 ment of member 138 (1,085,110: take place guntil the automatic accumulating 'm'echa- ;111SH1, 1I1Cl11d1Ilgfl notchedgmember'110, has

com leted its. movement under the action of 1 Weight 103, whereupon the. circuits con-9' trolled by contacts 108'- and 109flwillibe opened and those controlled by contact 7 9 i will be closed. This will open the stick relay circuit aroundmagnet 123 andzwillgcom V sequently open the: circult of magnet 131 so that: armature-134 will be released and permitted tocmove back under the action of re- 131 is as follows armature. 126, wire 1'32, electromagnet 131, wire 130, wire 39, wire 40,wi're 93, wire 41, binding post 3 wire 42, battery43, wire44,binding-"post 4 wire 45, binding post13 wire 68, wire 67 ,wireg133, "back to armature 126. This jmovement,' as

heretofore described, will cause a back and forth movement of the cam roller i140 and the momentary closing of circuits controlled by contacts 144. Upon the closing of ;contacts 144 current will flow from the ground to bindingpost 13 wire 68, wire 69, wire 121, contact 144, wire 122,1Wi18 81, binding 1 post-15,- (station 2). and then over the main line wire 3 through th'e'apparatusB at sta-i tion 3, and fronr-the apparatus 'B' atstatiou 3 over wire 27 ,to the indicator at station 3,

and from thence togthe ground, and from 2 the ground back to the apparatus B at station. 1 v 2, thus-completing the circuit. This circuit is as follows from line wire 3 the current. V willpass through binding post6 (Fig. 4) wire 83, wire 22,.binding post 9 wire23, battery 5 24, wire 25,binding post" S wire 26, bind+ "1 ing post 2?, ,wire27, wire 29, wire 30, bindaff ing post 3 wirev31to ground, thus 601115.

pleting" the circuit. ;Of course,the energiz-"m ing of e'lectromagnet' 17 at indicators of station 3 (shown in Fig. 3) will be accompaniedby the operation'of thefindicator tape notched member 110 has finished moving. In this-way the closing of the track switch 1 by any succeeding train will cause proper mechanism to be operated which will eventually permit or cause the operation of the indicators at the various stations ahead as soon as the condition of the relays will permit such operation so that the contact or closing of the switch by the second or succceding trains will be preserved and properly delivered at the proper time.

The movement of all of the notched members 53, 1:10 and 138 are preferably regulated by a suitable friction spring or other device at applied in any desired manner to the notched members so as to regulate the operation thereof. This is particularly desirable, in regard to the notched member 110 in order to regulate the speed or movement of member 110 and the action of weight 103 and stop 102 so as to cause an appreciable length of time to lapse while the contacts 120 are being held closed.

If for any reason it should be desirable to remove indicator A in station 1 or in fact any of the indicators from their respective stations this could be done by connecting battery 24: with binding post 7 by means of wire 25, and disconnecting the battery from binding post 8" as indicated in dotted lines, Fig. 1. WVith the indicator eliminated the things desired to be accomplished by the closing of switch 1 by the train are the energizing of electro-magnet 20 by means of battery 24 and the connecting of binding post 1 to the ground. When the suggested changes are made the following circuit will be closed as train 1 closes switch 1; the cur-- rent will rise from the ground to switch'l, wire 18, binding post 14, wire 19, electromagnet 20, wire 21 binding post 9 ,;wire 23,

battery 24, wire 25, bindingpost 7", wire 16 eleetro-magnet 14:2, wire 20 wire 45 binding post 13', back to the ground. As

, this circuit closes armature 143 will beat- 'tracted by electro-magnet 142 when the following circuit will be made: The current will post 3, wire 81, back to the ground. It will be seen that these circuits accomplish the same result as though electro-magnet 17 had been energized and had closed contact 34/ In the arrangement of the contacts the same may be made either of the spring variety or adjustable variety, or a combination of both, as found desirable for any particular case. Also in the use of all or most of the armatures a retractile spring may be provided for bringing the armature back to 7 its original position.

In addition to the springs, adjustable stops are also to be provided so as to limit the swinging movement of the respective arma tures in order to cause the same to act in the most eiiicient manner. I

I claim 1. In an electric system for indicating the location of railway trains, a switch and an electrically operated indicating device at certain of the stations, the indicating device at a g ven station relaying to another station, means connectingeach switch with its respectivecindicating device for causing a signal to be rece ved upon closmg sald switch, a signal accumulating device adapted to be located adjacent to the track, and

.means. for causing the accumulating device to operate for receiving a signal from the indicating device when said switch is closed a second time.

2. In an electric system for indicating the location of railway trains, a switch and an electrically operated indicating device at certain of the stations, means connecting each switch with its respective indicating device for causing a signal to be received upon closing said switch, a signal accumulating device adapted to be located adjacent to the track, and means for causing the accumulating device to operate for receiving a signal from the indicating device when said switch is closed a second time before the apparatus adjacent to the, switch has returned to normal. a

3. In an electric system for indicating the location of railway trains, a switch and an electrically operated indicating device at certain of the stations of the system, the indicating device at a given station relaying to another station, means connecting each switch with its respective indicating device for causing a signal to be received upon closing said switch, a signal accumulating device adapted to be located adjacent to the track, means for causing the accumulating device to operate for receiving a signal from the indicating device when said switch is closed a second time, and means for again placing the accumulating device in operation for transmitting the signal thus received.

4:. In an electric system for indicating the location of railway trains, a switch and an electrically operated indicating device at certain of the stations of the-system, means connecting each switch with its respective:

5. In an electric system for indicating the location of railway trains, a switch and an electrically operated indicating. device at 15 certain of the stations, means connecting each switch with its respective indicating device for causing a signal to be. received, a slgnal accumulating device ad acent to a .given indicating device, a'second accumulat- 120 mg devlce, means whereby the'lndica't ng devicevlast mentioned controls certain ;of

lthe accu nulating devices, means for controllinganother indicating device from one of said accumulating devlces, and means for 25 controllingtheindicating device lasti en v devices'after the signal received by the; first accumulating device has been transmitted therefrom: i I

' 6. In anelectric system for indicating the location of railwayftrains, a fswitch and an accumulating device adjacent to a given indicating device, a second'signal accumulat-' mg devlce, means whereby. the gI-VQILdI'LdI catlng devlcecontrols certa nioi sa1d-ac-;

:tioned from the other-of said accumulating cuinulating devices, and means forcontroL,

sling another indicatingdevicefrom; the ac-' cumulating device last mentioned;

In testimony whereof I afiixmy signature 11'1 presence of two w tnesses.

, CLINTON 1;. Born Witnesses: J

MAYME MURRAY, H. M. CowLEs.

. flopies of this patent may be obtained'for five cents each, by addressing the: Commissionerof iatents,

WashingtomRO. 

